Setting a precautionary catch limit for Antarctic krill
Setting a precautionary catch limit for Antarctic krill
复制标题
设定南极磷虾的预防性捕捞限额
DOI：
10.5670/oceanog.2002.12
复制
发表时间：
2002
期刊：
影响因子：
2.8
通讯作者：
J. Emery
中科院分区：
文献类型：
--
作者：
R. Hewitt;J. Watkins;David A. Demed;S. Kasatkina;J. Emery
南极海洋生物资源保护委员会 (CCAMLR) 最近通过了对斯科舍海南极磷虾 (EuphausiaSuperba) 400 万吨预防性捕捞限额的建议。该限制是基于对南大洋斯科舍海区磷虾进行的声学和网状调查估计得出的总生物量为 4430 万吨，以及根据对超出规定保护标准的风险分析确定的 9.1% 的捕捞率。然而，我们警告说，在渔业捕捞量扩大到 400 万吨的水平之前，有必要建立机制以避免捕捞活动集中，特别是在陆生磷虾捕食者群体附近，并考虑磷虾从多个来源迁移到该地区的影响。
Ar evised precautionary catch limit for Antarctic krill (Euphausia superba) in the Scotia Sea of 4 million tons was recently adopted by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). The limit was based on a total biomass of 44.3 million tons, as estimated from an acoustic and net survey of krill across the Scotia Sea sector of the Southern Ocean, and a harvest rate of 9.1%, as determined from an analysis of the risks of exceeding defined conservation criteria. We caution, however, that before the fishery can expand to the 4-million-ton level it will be necessary to establish mechanisms to avoid concentration of fishing effort, particularly in proximity to colonies of land-breeding krill predators, and to consider the effects of krill immigrating into the region from multiple sources.